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Contents
module Merb::Generators
class MigrationGenerator < Generator
def self.source_root
File.join(super, 'component', 'migration')
end
desc <<-DESC
Generates a new database migration.
DESC
option :orm, :desc => 'Object-Relation Mapper to use (one of: none, activerecord, datamapper, sequel)'
option :model, :as => :boolean, :desc => 'Specify this option to generate a migration which creates a table for the provided model'
first_argument :name, :required => true
second_argument :attributes, :as => :hash, :default => {}
def table_name
self.name.snake_case.pluralize
end
def class_name
"#{self.name.camel_case}Migration"
end
def migration_name
self.name.snake_case
end
def file_name
"#{version}_#{migration_name}_migration"
end
def version
# TODO: handle ActiveRecord timestamped migrations
n = options[:delete] ? current_migration_nr : current_migration_nr + 1
format("%03d", n)
end
protected
def destination_directory
File.join(destination_root, 'schema', 'migrations')
end
def current_migration_nr
current_migration_number = Dir["#{destination_directory}/*"].map do |f|
File.basename(f).match(/^(\d+)/)[0].to_i
end.max.to_i
end
end
add :migration, MigrationGenerator
end
Version data entries
28 entries across 28 versions & 1 rubygems